(19)

(11)

EP 0 880 387 A1

(12)

(43) Date of publication: 02.12.1998 Bulletin 1998/49 (21) Application number: 96933062.0 (22) Date of filing: 20.09.1996

(51) International Patent Classification (IPC):  B01D 3/ 00( . ) B01D 3/ 10( . ) B01D 3/ 02( . ) (86) International application number: PCT/US1996/015042 (87) International publication number: WO 1997/010883 (27.03.1997 Gazette 1997/14)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (71) Applicants: AMERICAN TECHNOLOGIES GROUP INC. Monrovia, CA 91016 (US) Wang, Chunsing Los Angeles, CA 90034 (US) Lo, Shui-Yin Arcadia, CA 91006 (US)	(72) Inventors: WANG, Chunsing Los Angeles, California 90034 (US) LO, Shui-Yin Arcadia, California 91006 (US) (74) Representative: McCarthy, Denis Alexis, et al  MacLachlan & Donaldson 47 Merrion Square Dublin 2 Dublin 2 (IE)